Device having a mechanically and hydraulically operated parking brake in a transmission

The invention relates to an apparatus with a mechanically and hydraulically operated parking brake (10) comprising a parking gear (11), a parking pawl (12) which engages positively into the parking gear when inserting the parking lock (10) (11), a housing-fixed in a cylinder (31) slidably disposed hydraulic piston (32), a to the hydraulic piston (32) connected to the piston rod (33), the actuating rod acting with the parking pawl (12) (40) is operatively connected, and a piston rod (33) surrounding the compression spring enclosing (37) axially between the cylinder (31) and a piston rod (33), along the piston rod center axis (33M) movable sleeve (35) is clamped. The spring force of the compression spring (37) causes engagement of the parking lock (10) provided that the hydraulic piston (32) is not pressurized. The actuating rod (40) with piston rod (33) and sleeve (35) perpendicular to the piston rod center axis (33M) pivotally connected. A in the piston rod (33) provided in the recess (34) into which the actuating rod (40) engages, limits the axial travel of the sleeve (35) and operating rod (40). The hydraulic piston (32) pressurized, the piston rod (33) via a hydraulic piston (32) facing away from the stop, the actuating rod moves (34B) of the recess (34) (40) together with the sleeve (35) against the spring force of the compression spring (37) axially in the leading to the disengagement of the parking lock (10) in the direction (36A).